ARM: OMAP2: Fix definition of SGX clock register bits

The GFX/SGX functional and interface clocks have different masks, for
some unknown reason, so split EN_SGX_SHIFT into one each for fclk and
iclk.

Correct according to the TRM and the far more important 'does this
actually work at all?' metric.
Signed-off-by: Daniel Stone <daniel.stone@nokia.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/clock34xx.h

@@ -1378,7 +1378,7 @@ static struct clk sgx_fck = {
 	.name		= "sgx_fck",
 	.init		= &omap2_init_clksel_parent,
 	.enable_reg	= _OMAP34XX_CM_REGADDR(OMAP3430ES2_SGX_MOD, CM_FCLKEN),
-	.enable_bit	= OMAP3430ES2_EN_SGX_SHIFT,
+	.enable_bit	= OMAP3430ES2_CM_FCLKEN_SGX_EN_SGX_SHIFT,
 	.clksel_reg	= _OMAP34XX_CM_REGADDR(OMAP3430ES2_SGX_MOD, CM_CLKSEL),
 	.clksel_mask	= OMAP3430ES2_CLKSEL_SGX_MASK,
 	.clksel		= sgx_clksel,
@@ -1391,7 +1391,7 @@ static struct clk sgx_ick = {
 	.name		= "sgx_ick",
 	.parent		= &l3_ick,
 	.enable_reg	= _OMAP34XX_CM_REGADDR(OMAP3430ES2_SGX_MOD, CM_ICLKEN),
-	.enable_bit	= OMAP3430ES2_EN_SGX_SHIFT,
+	.enable_bit	= OMAP3430ES2_CM_ICLKEN_SGX_EN_SGX_SHIFT,
 	.flags		= CLOCK_IN_OMAP3430ES2,
 	.clkdm		= { .name = "sgx_clkdm" },
 	.recalc		= &followparent_recalc,

arch/arm/mach-omap2/cm-regbits-34xx.h

@@ -340,8 +340,12 @@
 #define OMAP3430ES1_CLKACTIVITY_GFX_MASK		(1 << 0)
 
 /* CM_FCLKEN_SGX */
-#define OMAP3430ES2_EN_SGX_SHIFT			1
-#define OMAP3430ES2_EN_SGX_MASK				(1 << 1)
+#define OMAP3430ES2_CM_FCLKEN_SGX_EN_SGX_SHIFT		1
+#define OMAP3430ES2_CM_FCLKEN_SGX_EN_SGX_MASK		(1 << 1)
+
+/* CM_ICLKEN_SGX */
+#define OMAP3430ES2_CM_ICLKEN_SGX_EN_SGX_SHIFT		0
+#define OMAP3430ES2_CM_ICLKEN_SGX_EN_SGX_MASK		(1 << 0)
 
 /* CM_CLKSEL_SGX */
 #define OMAP3430ES2_CLKSEL_SGX_SHIFT			0